Tumbling-barrel.



J. M. G. FULLMAN.

TUMBLING BARREL.

APPLICATION FILED AUG-21. 1914.

1,174,975. Patented'Mar. 14, 1916.

4 SHEETSSHEET 1.

J. M. G. FULLMAN.

TUMBLING BARREL.

APPLICATION FILED AUG.2I. 1914.

1,174,975. Patented Mar. 14, 1916.

4 SHEETS-SHEET 2.

WITNESSES INVENTOR (mum; I 6M4.

1. M. G. FULLMAN.

TUMBLING BARREL.

Patented Man-14, 1916.

4 SHEETS-SHEET 3.

INVENTOR J. M. G. FULLMAN.

TUMBLING BARREL.

APPLICATION FILED AUG-2|, m4.

1,174,975. Patented Mar. 14,1916.

4 SHEETS-SHEET 4.

INVENTOR 001m k wy JAMES M. G.

F'ULLMAN, OF SEWICKLEY, PENNSYLVANIA, ASSIGNOR TO NATIONAL METAL MOLDING COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

TUMBLING-IBARREL.

Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed August 21, 1914. Serial No. 857,958.

T all whom it may concern:

Be it known that I. JAMEs M. G. FULL- uxx, residing at Sewicklcy, in the county \llegheny and State of Pennsylvania, a

7, z-iiixr-n of the lfnitiwl tates have invented cnvmvd certain :w and useful Imzo ments in Tumbling" lin rels, of which nnprovements the followng i a specifica- Lon.

My invention relates to tumbling barrels, st uctures in which articles are caused to strike one against another and against the sides of the barrel itself, to effect sometimes cleaning, sometimes abrading, and sometimes other ends.

My improved barrel is illustrated in the accompanying drawings.

Figure 1 is a plan view; Fig. 2 a vertical section on the plane indicated at 11-11, Fig. 1, and showing the essential parts in end elevation; Fig. 3 is a view in longitudinal vertical section, on the plane indicated at III-III, Fig. 1; Fig. 4 is a view corresponding to Fig. 1, and tion in structure. In this figure a portion of the side-wall of the barrel is broken away, to show the disposition of an air-nozzle with in it. Fig. 5 is an end elevation of the apparatus shown in Fig. 4, viewed from the left, Fig. 4. Fig. 6 is a view in cross section through the enlarged zone of the tumbling barrel showing the lower half thereof in full lines and resting upon supporting rollers, the upper half in dotted lines, and a chain lying in the enlarged zone.

The tumbling barrel 1, of substantially cylindrical shape, is mounted to rotate on its axis in a frame 2. To this end, one head 3 of the barrel is journaled in a housing 4 in the frame 2, while rollers 5 mounted in the opposite end of the frame 2 sustain the barrel near its opposite end. The frame 2 is pivoted intermediate the length of the cylinder, on trunnions with housings 6, carried on proper stationary supports, with space between to allow the swinging of frame and barrel together, as shown in Fig. 3. The swinging of frame and barrel upon such pivotal support is effected by a motor 7 acting through a shaft 8 and crank and pitman connections 9 and 10 with the frame, at a point (as 11) remote from the center of turning.

The motor 7, traveling continuously and acting through uninterrupted connections, may keep the barrel swinging back and forth illustrating a variawithout intermission; or, as will be understood, it may be made available to shift the barrel through its range of pivotal motion only once, or as many times as desired, while a single charge of material is being handled. The movement may of course be interrupted at any point by stopping the motor, or by any suitable means. A second motor 12 effects rotation of the barrel on its axis within frame 2. This motor 12 drives a shaft 13, concentric with the trunnions upon which the frame and barrel are pivoted as aforesaid. This shaft 18 is geared by worm gear with a'. shaft 14, which, journaled in frame 2, extends longitudinally of barrel 1 and carries a pinion 15 which meshes with a gearwheel 16 made to move in unison with barrel 1, and preferably fqrmed about the periphery at one end of the barrel as shown. Thus the barrel may be rotated in the frame 2 con tinuously, whether the frame be swinging or at rest. It is because of the desirability of having the two motions independent of one another that two motors are conveniently employed. It will be apparent that these sources of power may be of any character desired; they may even be replaced by provision for moving by muscular power; furthermore, the driving connections from any source or sources of power may be altered and adapted as desired. 1 have shown two independent motors as a simple and effective way of getting the movements desired.

The end of the barrel opposite that end which is trunnion'ed in frame 2 as described is preferably open. The barrel is divided medially and longitudinally, and a portion of the side may be removed for purposes of charging and discharging. Fig. 3 shows at 17 a flange on the head 3 of the barrel; and Fig. 1 shows at 18 latches. on the sides by which the removable part of the barrel may be secured in place. Enlarged zones 19 in the sides of the barrel are provided to receive the supports by which bundles of articles are gathered and carried and transferred to and from the barrel 1. These offset zones form strengthening bands around the barrel and upon them, or one of them. the supporting rollers 5 already described may have their hearing.

Fig. 6 shows the barrel in process of charging or discharging, the upper half of the longitudinally divided barrel being indicated in I dotted lines and the other half in full lines.

The enlarged zone 19 rests upon the supporting rollers 5, and a bundle of pipes, which, for instance, may have come from the sherardizing process, is shown to be surrounded by a chain 25 lying in the enlarged zone, which chain in this case constitutes the support by which this bundle of pipes has been brought to the tumbling barrel, and by which it may be removed therefrom.

The walls of the barrel are perforated with many holes throughout substantially all their extent, both in the sides and in the head. Air pipes 20, 21' are provided with nozzles so arranged as to direct streams of compressed air, the one (21) into the open head of the tumbling barrel and the other (20) against the perforated side; the orifices of the air pipe 20 may be spaced and arranged to register With the lines of perforations in the sides of barrel 1, as the barrel turns. These pipes may conveniently be swiveled to a supply pipe 22, concentric with the pivots upon which the tumbling-barrel 1 swings. Also, the portion of the pipe 21 extending across the end of the barrel may be swiveled to the portion thereof extending longitudinally of the barrels.

A pit is formed between the standards from which the barrel is hung and in which the swingin barrel has clearance. This pit is hopper s aped, as will be apparent on comparing Figs. 2 and 3, and in its throat is arranged a conveyer 23, for carrying away the accumulation of material, the removal of which is the object of this apparatus.

The alternative structure shown in Figs. 4 and 5 will be understood in a few words. In this form the streams of air instead of being directed from outside into the barrel, are released within the barrel, and play directly upon the articles under treatment. In this case the construction is identical with that already described, except in the matter of the air-pipe. The pipe 20 extends externally alon the side of the barrel, and is provided wit an extension or nozzle 24, substantially as long as the barrel, arranged parallel with the pipe on the outside of the barrel and pivoted at the outer end to such pipe. When the removable side of the barrel 1 is taken away, the nozzle 24 may be swung to and from position within the barrel, as is indicated by dotted lines in Fig. 5.

he operation will readily be understood. The barrel being brought to the horizontal position shown in Fi s. 1, 2, 4, and 5, and shown also in dotted es in Fi 3,. the removable portion of the side of t e barrel is taken away. The articles to be treated are then brought onsuitable suppoits properly jected to blasts of compressed spaced from one another, and are lowered into the open-sided barrel, the supports entering the recesses or zones 19. The chains or other means of transferring are then removed. If the form of air-nozzle shown in F igs. 4 and 5 is the form employed, it will then be swung to position within the barrel. The removable side of the barrel is then brought to place and secured. The operation ensues. The barrel is rotated and the blasts of air caused to fiowthrough the open end of the barrel and through its perforate sides (Fig. 1), or directly upon the charge of articles within the barrel (Fig. 4). Such turning of the barrel and the consequent tumbling of the articles under treatment, while they are at the same time subair streaming upon them, effects the loosening of the superfluous material. This loosened material will escape through the perforations on the lower side of the barrel. The turning of the barrel on end while this process of tumbling and blowing still proceeds will further assist in the removal of the loosened material. The lower end or head of the barrel (the righthand end, Fig. 3) is perforate to permit the escape of the loosened material. The loosened material sifting through these perforations in the sides and end of the barrel collects in the hopper beneath and is carried off by conveyer 23.

' I claim as my invention:

1. A tumbling barrel of essentially cylindrical form divided medially and longitudinally and provided in its cylindrical walls with enlarged zones, substantially as described.

2. In a cleaning apparatus a tumbling barrel of essentially cylindrical form mounted in a suitable frame said tumbling barrel being divided medially and longitudinally and provided with an enlarged zone in its cylindrical walls and supporting rollers in said frame engaging such enlarged zone.

3. A cleaning apparatus including the combination of a perforate rotary tumblingbarrel having one side removable, and a compressed-airnozzle mounted on a support external to said barrel and capable of being swung when the side of the barrel is removed to and from operative position within the barrel.

'In testimony whereof I have hereunto set my hand.

JAMES M. e. FULLMAN.

Witnesses:

PAUL N. CRrroHLow, Farmers J. TOMASSON. 

